Water-treating apparatus.



-- c, L. KENNIGOTT. WATER TREATING APPARATUS.

APPLICATION FILED APR. 6, 1914.

LTLTL4J46.

2 F$HEBTS-SHBET 1.

VIVITNESSES I67 65- 35 49 Patented Oct. 20, 1914.

1 G. L. KENNIOOTT. WATER TREATING APPARATUS. APPLIGATION FILEDAPR.G,1914.

men-bed 9011.20, 1914.

ltl

" sass L. KENNICOTT, or cnrcaoo HEIGHTS, ILLINOIS.

WATER-TREATING APPTUS.

Specification of Letters Patent.

Application filed April 6, 1914. Serial 116,830,042.

To (luv/17207771 it may concern Be it known that l, CAss L. Knnnioor'r,a citizen of the United States, residing in Chicago Heights, county ofCook, and State of lllinois, have invented new and'useful improvementsin Water-Treating Apparatus, of which the following is a specification.

In devices for treating water and particularly for softening water,filters are used in many casesfor filtering the water. The filter may beinstalled to filter the water either before or after it is softened.

in treating Water with chemicals it has been found. that the chemicalsadded to the raw water do not react to the fullest extent during thelimited time that water usually remains in such an apparatus and some ofthe chemicals, may be carried away with sediment in the softened waterwithout having formed a part in the reaction. Filters have been used forthe purpose of filtering from the water, sediment including chemicalswhich may not have reacted and as the filtering material within thefilters becomes clogged due to the accumulation of sediment therein ithas been customary to wash the filterand allow the wash water containingthe sediment together with chemicals Which have not reacted to pass fromthe filter to the sewer. By this method an extra pipe line is needed toconduct the wash water to the sewer and a portion of the chemicals maybe wasted. In devices of this character Where storage of Water which hasbeen softened is required, it has been customary to provide storagespace for water above the filter so that when it is desired to use waterat a rategreater than the softening apparatus will satisfactorily handleit the water above the filter maybe drawn .therethrough due to pressureof the water or due to negative head created within the filter by, the

flow of water from the filter. This arrangement has the disadvantagethat water is not available for use at a greater rate than it can behandled through the filter.

One of the objects of this invention is to produce a water treatingapparatus which will conserve the chemicals' anotherobject is todoawaywith the use of a separate pipe line for conveying wash water fromthe filter; another object is to provide a supply of water completelytreated by both softener and filter in a conveniently arranged storagechamber so that this stored'water will be available for immediate use ata rate which is not limited by the filter; other objects are theconstruction of adevice of this character which isco mpact and'simplein, construe-- tlon, which can be easily operated and which shall beetficient in the treatment of water.

.These objects I accomplish by constructing a water treating apparatuscomprising a sedimentation tank and preferably having a conduit leadinginto the tank; by provid- Patented oct. so, ioia. I

unused chemicals ll cause amore complete v reaction ofthe freshchemicals thereby further conserving chemicals and producing moreeflicientresults.

In the accompanying drawings, Figure 1 represents an elevational' viewpartly in section of a device embodying one form of my invention, theView being taken on theline zvw of Fig. 2; Fig. 2 represents a plan viewof Fig. 1 with the apportioning apparatus removed; Fig. 8 represents anelevation of a modification of my invention with apportionlng apparatusremoved while Fig. 4 shows a plan view of Fig. 8.

comprising a sedimentation chamber of a water treating apparatuswhichmay be of any desired form. A conduit or downtake 2 may extend into thesedimentation tank and be adapted to lead Water into the tank. Thedowntake may be supported inany vpreferred manner as by I-beams66 and67ex- Referring to Fig. 1, 1 represents a tank tending from the sides ofthe tank.-

desired mechanism may be used for apporg tioning chemicals for treatingor softening the water and in Fig. l a suitable chemical tank 8 isshownw'hich may contain the.

chemicals to be delivered for softening water. l/Vater enters throughthe main supply line 4: and passes through a balanced valve 5 whichcontrols the supply as here inafter described. Water is then deliveredthrough the'pipe 6 to the raw water box 7 which may contain means fordividing the supply into'two portions. The main portion of thewaterpasses to a water wheel-8 which is positioned within the shield 9thereby driving the shaft 10 .and operating suitable agitatingm echanismas shown at 11 1 within the chemical tank 3. lBevel gears 12 5 and 13may be used-to transmit motion from.

the shaft lOfto the agitating mechanism. After passing over the waterwheel 8, the main portion of the water is delivered from the bottom ofthe shield 9 through the spout 51 and into the tank'or preferably into aconduit or downtake 2 extending into the tank 1. A regulating tank 15.contains a float 16 which is attached by means of a chain or flexiblecable 17 passing over pulleys 18 and 19 to a lift pipe 20 within thechemical tank 3. The smaller portion of the water in the raw water box 7passes through 7 the pipe 22 to the regulating tank 15. The

intake end 21 of the lift pipe 20 is a relatively large opening so thatthe level of (chemicals within the tank 3 Will'be maintained at thelevel ofthe intake end 21. As the I float 16 rises due to the rise ofwater in the regulating tank 15 the intake end 21 will fall therebydelivering chemicals through the pipe 23 to the upper end of thedowntake' 2 where the chemicals will mix with the raw water, issuingfrom thespout 51. The amount of water passingthrough the pipe 22together with the quantity of chemieals in the chemical tank should beadj usted so that the regulating tank 15 will fill "and the chemicaltank3 will empty in the :1 correct" proportion to the raw water delivered bythe spout 51, to the tank. A valve 24);may be used to drain water fromthe regulating tank when a new charge of chem- .icals, is beingprepared, The chemicals and '5'--" r'aw water will then be delivered tothe up- '40 per end of the conduit 2 in the proper proportion fortreating the water and are conveyed preferably in a downward directioninto sedimentation tank 1. The water may then pass upwardin the spacebetween the conduit 2 and the sides of the tank 1 to the upper part ofthe tank.

' The filter or in some cases, more than one I i filter, may be built inthe upper part of. the

tank' or thefilter may be separate from,the tank. In Fig. 1 two filtersare shown built inthe upper portion of the tank. Two compartments 25 and26 may be formed in segmental shape by plates 27 and 28 andv by plates29 and 30 which form the sides and bottoms of the compartmentsrespectively. The sides 27 and 28 of the filters may, of course, bedesigned so as to support the weight of the filtering material or anysuit ablemethod of supporting the filter may be used. As both filtersare similar a description of filtering compartment 25 will sufiice. 1 Asuitable screen or'a plate 31 with openings a, a, is placed across thecompartment 25 leaving a 'sm'all space 32 for filtered water. Quartz,gravel or other suitable filtering maand thence to the outlet connection38 which leads from the apparatus.

A pipe line 39 connects to the main sup- -ply lin 4 and is adapted tosupply the wator for .vashing the filter. A pipe 40' leading from thepipe 39 and containing the valve 41 connects with the valve 36. Thevalves 36 and 41 are connected by means of a rod 42 and may be operatedsimultaneously by moving the lever arm 43.

The valves operate as follows: lVhen the lever arm 43, of valve 41 israised the valve 41 opens and the three-way valve 36 operates to formcommunication between the pipe 40 and 35 and to close communication tothe pipe 44. When the lover arm 43 is lowered a reverse operation takesplace.

Suitable mechanism may be installed in the bottom of the sedimentationtank for delivering sludge or sediment therefrom and may comprise a pipesystem 46 having a series of pick-up pipes 47 leading thereto. Pipe 46leads to the flange on the outside of the tank 1 and terminates in avalve 48 having a lever arm- 49 for its operation. When'thc lever arm 49is raised the valve is opened and the weight of the water within thesedimentation tank causes the sludge or sediment to pass through thepipes 47 to the pipe 46 and through the valve 48 which may deliver tothe sewer.

A valve 50 in the supply line 4 may be used to cut off the supply ofwater to be treated and a float 56 actuated by the level of water withinthe tank 1 or in the filter 25 may operate the valve 5 through theconnecting rod 57 and automatically control the supply of water to theapparatus when the valve 50 is open.

Where two filters are employed a'channel 52 may connect the two filtersfor the purpose of equalizing the head in the filters and may have achute 53 leading therefrom into the conduit 2. The sides 27 and 28 ofthe filters are cut down at the points where they meet the channel 52and are attached thereto by water tight connections. The bottom of thechannel is below the tops of the sides 27'and 28 so that while thefilter is being washed the water flows from the filters to the channelwithout passing over the upper edges of the sides. A suitable valve 54operated. by a handle may bethe filters may be used for filtering thewaso that the wash water will pass to the cons.

ter. Tn washing the filter 25 the valve 54 should be tnrned so as to cutoil communi;

cation withxlthe filter 26 and place the chan-' nel in communicationwith the chute 53 duit. i

' One particular feature of: my invention is the method oil cleaning thesediment from the apparatus which should be as follows: The supply" ofwater to be treated'should be cut oil by closing the valve 50 in thesupply line 4. The valve 48 may then'be opened which will allow thesediment that has accumulated at the bottom of the tank 1 to pass 0ft,with the-corresponding fall of the water level in the upper" part of thetank.

The lever arm 43 may then be raised which delivers water through thevalve 35 for-the purpose of washing the filter and the water will passin a reverse direction through the filter causing the sediment tobeWashed from the filtering material'into the channel 52 and chute 53which conveys water to the conduit 2. The filter 26 may be washed in asimilar manner by turning the valve 54 so as to cut off; communicationWith filter 2.5, The wash water containing the sediment which has beenwashed from the filter will then pass through the channel into theconduit and any chemicals which have not reacted will be again mixedwith the water in the downtake and given an opportunity to completetheir reaction and the addition of this precipitate will aid in furtherre action as previously described. The conduit 2 keeps the wash waterseparate from the water which is in the upper part of the tank and whichis treated water and the filter may be washed untilthe water levelwithin the tank 1 rises to the desired height. The sediment from thefilter which is delivered to the. conduit will then be of considerablevolume and will precipitate properly and pass to the bottom of the tankwhere it may be removed when desired.

. In Figs. 3 and 4 the filtering compartment 25 is shown in connectionwith a storagechamber 74 formed in the tank for storing softened andfiltered water A head or diaphragm 68 extends across the tank and theconduit. 2 leadsfrom the top of the tank down through the storagechamber to the sedimentation chamber in the lower part of the tank. Apipe 69 connects to the head 68 by a flange and leads softened waterthrough the elbow 71 to the upper part of the filtering compartment 25.,A .valve 72 in the pipe 44 performs the same service as valve 36,previously described. The pipe 37' leads downward from. pipe 44 and hasa "l' 73 forming communication with the storage chamber 74 at thepoint75. The pipe 76 is adapted to lead water from'the pipe 37 and fromstorage chamber 74 to the outlet fiange 77 and a valve 78 may of, coursebe used togovern the amount of water taken from the apparatus. The waterpassing through the filter will pass through the piping and to thestorage chamber 74 under ordinary rates delivered from the filter andvthe difference in head may be increased until the level within thestorage chamber is lowered to the open end 75 of the T 73. Iii-Figs. 3and 4 another method is shown' of forming a communication between afilter and the conduit. A pipe 59 is attached to the side 27 of thefilter and extends from the filter through the wall of the conduit asshown dotted at 60. A swivel conneetioniormed by two elbows 61 and 62,Fig. 4, forms a connection between the pipe 59 and a hopper 58 withinthe filtering compartment 25. A spring handle 63 connects to the 11013per 58 and is adapted to swing the hopper per 58 may be lowered into thewater within the filtering compartment 25. The lever' j arm 63 may holdthe hopper 58 in its highest position by engaging a catch 64. Byspringing the lever arm '63 to one. side it may be released from thecatch allowing the hopper 58 to lower into the filtering compartmerit25. When it is desired to wash the filter the hopper 58 may be loweredas above described thereby receiving the wash water and deliver itthrough the pipe 59 to the conduit.

Various other forms of my invention. will occur to those skilled in theart and I do not wish to confine myself to the exact con structions setforth.'

' What I claim as my invention and desire to protect by Letters Patent1s:

1. In a water treating apparatus, a downtake, means for filteringsediment from the water and means for washing sediment from thefiltering means into the downtake.

2. In a water'tre'ating apparatus, a downtake', a filter, means fordellvering water to the "filter for the purpose of washing the filteringmaterial and means for conveying this: wash water from the filter intothe downta e.

3. Tn a watertreating apparatus, a sedimentation tank, a conduit leadinginto the tank, a filter containing material for filterabout the swivelconnection so that the hoptank, means for delivering wash Water tothefiltering compartment and means for conveying water from the filteringcompartment' into the conduit.

5. The combination with a water softener having a conduit for watertherein, of a filter for filtering sediment from the water and means forwashing the sediment from the filter into the conduit.

6. In a Water treating apparatus, a sedimentation tank, a con uitextending into the tank, a filtering compartment within the tank, meansfor conveying water from the filter to the conduit and a valve in theconveying means for controlling the passage of water therethrough.

7. In awater treating apparatus, a sedimentation tank, a conduitextending into the tank,'filters within the tank, means for conveyingwater from the filters to the conduit and a valve in the conveyingmeans,

- said-valve being adapted to control the supply of water through theconveying means.

8.. In a water treating apparatus, a sedimentation tank, filters withinthe tank, a channel connecting the'filters whereby the head of waterwithin the filters is equalized and means for leading Water from thechannel to the tank.

9. In a water treating apparatus, a sedimentation tank, filtersforfiltering sediment from the water, means connecting the filters wherebythe lead within the filters is equalized and means leading from theequalizing means adapted to' convey Water to the tank.

10. In'a water treating apparatus, a tank, a sedimentation chamberformed in the tank, a conduit extending into the tank, a storage chamberformed in the tank, a filter adapted to receive water from thesedimentation chamber, filter it and deliver it to the storage chamberand means for Washing sediment from the filter into the conduit. CASS L.KENNICOTT.

Witnesses:

I. E. Drsonmonn, II. C. ALGER.

